the 4that term of an
Ap is zero
25th team is 3 times 11th term
prove
Answers
Answered by
3
Answer:
Hello friend I hope you may understand this
A.T.Q
a+3d=0
therefore a=-3d
A.T.Q
we should prove a+24d =3(a+10d)
a+24d=-3d+24d=21d. (a=-3d)
a+10d=-3d+10d=7d........(1)
therefore 7d=3(7d)=21d{....=(1)}
Read more on Brainly.in - https://brainly.in/question/7843588#readmore
Answered by
16
Answer:
Given a^4=0
That is (a+3d) =0
a= -3d ........... (1)
nth term of AP is given by an = a+(n-1) d
a^11=a+10d =-3d +10d=7d [ From (1)]
a^25a+ 24d= -3d+24d =21d
[ Form (1)
= 3×7d
Hence a^ 25 = 3×a^11
Step-by-step explanation:
I WILL HELP YOU
Similar questions